Resilience and biochemical response to predicted future North Atlantic Ocean temperature conditions (+2 °C of current seasonal observations) and different light conditions were investigated in four commercially valuable macroalgae that naturally inhabit different shore levels (Ascophyllum nodosum, Fucus serratus, Laminaria digitata and Palmaria palmata). Increased irradiances had a positive effect on growth rates of the intertidal species (Ascophyllum. nodosum and Fucus serratus). Growth and chlorophyll contents of Laminaria digitata were most strongly impacted by temperature, but its fatty acid contents and composition were more strongly controlled by light. Neither changes in light nor temperature affected growth of Palmaria palmata although biochemical composition was highly sensitive to temperature. Pigments and polyunsaturated fatty acids exhibited a correlated response in the brown canopy-forming macroalgae, with decreasing concentrations with increasing light conditions. By integrating growth and changes in biochemical composition, new production of essential and commercially relevant biomolecules was evaluated, Effects of individual and combined environmental factors on growth and key biochemical composition were linked to the specific acclimation potential of macroalgae from different habitats. Results demonstrate that future global change will not only impact on coastal food webs but also has likely impacts on sustainable production of algal biomass and high-value compounds due to changes in productivity and biochemical composition under anticipated future environmental regimes.

在四个自然栖息于不同海岸水平上的商业上有价值的大型藻类中研究了对预测的北大西洋未来温度条件（当前季节性观测的+2°C）和不同光照条件的适应性和生化响应，该物种自然生活在不同的海岸水平上（Ascophyllum nodosum，Fusus serratus，Laminaria digitata和Palmaria） palmata）。增加辐照对潮间带的物种（增长率有积极的作用泡叶。结节性红斑和墨角藻锯）。洋带海藻的生长和叶绿素含量受到温度的影响最大，但其脂肪酸含量和组成受光的影响更大。光照和温度的变化都不会影响棕榈果的生长尽管生化成分对温度高度敏感。色素和多不饱和脂肪酸在形成棕色冠层的大型藻类中表现出相关的响应，随着光照条件的增加其浓度降低。通过整合生长和生化成分的变化，评估了必需的和商业上相关的生物分子的新生产。单个和组合环境因素对生长和关键生化成分的影响与来自不同生境的大型藻类的特定驯化潜力相关。